On Sun, 08 Dec 2024 21:46:01 +0000, Pavel Begunkov wrote: > When io_check_coalesce_buffer() meets a single page buffer it bails out > and tells that it can be coalesced. That's fine for registered buffers > as io_coalesce_buffer() wouldn't change anything, but the region code > now uses the function to decided on whether to vmap the buffer or not. > > Report that a single page buffer is trivially coalescable and let > io_sqe_buffer_register() to filter them. > > [...] Applied, thanks! [1/1] io_uring: don't vmap single page regions commit: 21e3947c0cd2ecdfc043089288973d40979d3a81 Best regards, -- Jens Axboe